Ultra heavy, this metal ring locks around the top of the testicles stretching and weighing them down for a totally teasing sensation. The thick ring stops the testicles rising at the point of ejaculation, delaying your pleasure for even longer. Locking in place using a hex key, this tri-hinged ring is impossible to open without it! A great accessory to any CB chastity unit or a brilliant starter for those who want to try ball stretching. Size : inner Diameter 40mm, 45mm, 50mm